环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2012年
3期
127-129
,共3页
丙酮和丁酮%废气%气相色谱
丙酮和丁酮%廢氣%氣相色譜
병동화정동%폐기%기상색보
Ketone and methyl ethyl ketone%exhaust gas%gas chromatography
建立了用气相色谱法测定废气中丙酮和丁酮的方法。废气中丙酮和丁酮活性炭吸附,二硫化碳解吸,NNOWAX毛细管柱分离,直接进样分析,氢火焰离子化检测器检测,时间定性,峰面积定量,其丙酮回收率为91.6%～103.5%,丁酮回收率为90.2%～104.3%,当采样体积为30L,丙酮和丁酮最低检出质量浓度为0.001mg/m3。本方法前处理简便,分离度好干扰少,分析灵敏度高,有机试剂使用量少,满足环境分析要求。
建立瞭用氣相色譜法測定廢氣中丙酮和丁酮的方法。廢氣中丙酮和丁酮活性炭吸附,二硫化碳解吸,NNOWAX毛細管柱分離,直接進樣分析,氫火燄離子化檢測器檢測,時間定性,峰麵積定量,其丙酮迴收率為91.6%～103.5%,丁酮迴收率為90.2%～104.3%,噹採樣體積為30L,丙酮和丁酮最低檢齣質量濃度為0.001mg/m3。本方法前處理簡便,分離度好榦擾少,分析靈敏度高,有機試劑使用量少,滿足環境分析要求。
건립료용기상색보법측정폐기중병동화정동적방법。폐기중병동화정동활성탄흡부,이류화탄해흡,NNOWAX모세관주분리,직접진양분석,경화염리자화검측기검측,시간정성,봉면적정량,기병동회수솔위91.6%～103.5%,정동회수솔위90.2%～104.3%,당채양체적위30L,병동화정동최저검출질량농도위0.001mg/m3。본방법전처리간편,분리도호간우소,분석령민도고,유궤시제사용량소,만족배경분석요구。
The method to test acetone and methyl ethyl ketone in waste gas by chromatographic method was established in this study.Acetone and methyl ethyl ketone in waste gas adsorption of activated carbon,carbon disulfide desorption,NNOWAX separated by capillary column,direct injection analysis,hydrogen flame ionization detector,time is qualitative,quantitative peak area,the acetone recovery rate was 91.6%~103.5%,methyl ethyl ketone recovery rate was 90.2%~104.3%.When the sampling volume is 30L,the minimum detectable concentration of acetone and methyl ethyl ketone are 0.001mg/m3.The advantages of this method are easy pretreatment,good separation with little interference,high analysis sensitivity,little organic reagents dosage and meeting the environmental analysis requirements.
